A U.S. Marine on a return flight to the United States from Tokyo, Japan, swiftly intervened by tackling a man to the ground and securing him with zip ties after the individual allegedly attempted to grab the emergency exit door during the flight, according to reports.

NBC reported Sergeant Major Jody Armentrout was on Flight 114 from Tokyo to Houston when he saw a man acting suspiciously.

Armentrout, a Marine with over 20 years of service and currently stationed in Japan, shared that he observed a man acting suspiciously by taking his backpack to one restroom and then moving from bathroom to bathroom.

“He exited that restroom and began pacing along the aisle, which immediately raised my suspicions,” the 50-year-old Marine reportedly stated during a phone interview.

The FBI’s Seattle office told Fox News Digital two people were removed from a flight from Tokyo to Houston that was diverted to Seattle. (Getty Images)

The flight continued to its destination after its stop in Seattle and landed in Houston without further incident.

No charges have been filed in the incident, the FBI said.

Prosecutors are reviewing reports and witness statements to determine if the case is appropriate for federal prosecution.

All Nippon Airways told Fox News Digital the flight was diverted due to an “unruly” passenger.

“While on the tarmac in Seattle, a second passenger became unruly,” the airline said. “Both were removed from the flight by the Port of Seattle Police.

“The safety of our passengers and crew are our top priority, and we applaud the efforts of local law enforcement for their support.”